{"id":19545,"date":"2023-05-21T17:02:53","date_gmt":"2023-05-21T08:02:53","guid":{"rendered":"https:\/\/www.decoboco.info\/en\/?p=19545"},"modified":"2026-09-24T13:46:13","modified_gmt":"2026-09-24T04:46:13","slug":"zephyr550-zr550-used-bike-maintenance-compression-pressure-spark-plug-2","status":"publish","type":"post","link":"https:\/\/www.decoboco.info\/en\/20230521\/decoboco-cars\/zephyr550zr550\/zephyr550-zr550-used-bike-maintenance-compression-pressure-spark-plug-2","title":{"rendered":"ZEPHYR550\/400 (ZR550) Zephyr 550\/400 used bike maintenance (compression pressure spark plug) cold compression, ignition plug, carburetor synchronization"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2023\/05\/0b76284babcbf22a94ae028658c2f58c-2-1024x576.png\" alt=\"\" class=\"wp-image-19542\" srcset=\"https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2023\/05\/0b76284babcbf22a94ae028658c2f58c-2-1024x576.png 1024w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2023\/05\/0b76284babcbf22a94ae028658c2f58c-2-300x169.png 300w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2023\/05\/0b76284babcbf22a94ae028658c2f58c-2-768x432.png 768w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2023\/05\/0b76284babcbf22a94ae028658c2f58c-2-1200x675.png 1200w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2023\/05\/0b76284babcbf22a94ae028658c2f58c-2.png 1280w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">Well then, <br>this is a ZEPHYR550. <br>Quite a bit of time has passed, <br>and I&#8217;d like to gradually freshen it up. <\/p>\n\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-left\" data-col=\"gray\"><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p>Ideally, <br>it starts on the first try every time! <\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">Whether the starting is good or bad <br>really changes your mood completely (*\u00b4\u03c9\uff40*) <\/p>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<!--more-->\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"ZEPHYR550(ZR550)\u30bc\u30d5\u30a1\u30fc550 used bike maintenance (compression\u3000 pressure\u3000spark plug\uff09\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/ECTo4-8dDOc?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2023\/05\/IMG_8357-1024x768.jpg\" alt=\"\" class=\"wp-image-19543\" srcset=\"https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2023\/05\/IMG_8357-1024x768.jpg 1024w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2023\/05\/IMG_8357-300x225.jpg 300w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2023\/05\/IMG_8357-768x576.jpg 768w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2023\/05\/IMG_8357-1200x900.jpg 1200w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2023\/05\/IMG_8357.jpg 1280w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">I checked the current condition with cold compression. <\/p>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.decoboco.info\/wp-content\/uploads\/2023\/05\/IMG_8382-1024x768.jpg\" alt=\"\" class=\"wp-image-19544\" srcset=\"https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2023\/05\/IMG_8382-1024x768.jpg 1024w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2023\/05\/IMG_8382-300x225.jpg 300w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2023\/05\/IMG_8382-768x576.jpg 768w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2023\/05\/IMG_8382-1200x900.jpg 1200w, https:\/\/www.decoboco.info\/en\/wp-content\/uploads\/sites\/2\/2023\/05\/IMG_8382.jpg 1280w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><br><br>After that, <br>I replaced the spark plug <strong>from DR8EA to JR8B <\/strong> <br>\u2192 <strong>carburetor synchronization <\/strong>in that order. <br><br>To be honest, <br>at this point, <br><strong>there wasn&#8217;t a major improvement. <\/strong> <br><br>However, <br><strong>spark plug\/compression\/synchronization <\/strong><br>as the cause of the problem <br>could be ruled out. <br><br>It would be nice if we could figure it out in one shot, <br>but troubleshooting <br>is a process of elimination. <br><br>It&#8217;s important to make steady progress! <\/p>\n\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-left\" data-col=\"gray\"><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p>Next ZEPHYR550 <br><strong><a href=\"https:\/\/www.decoboco.info\/en\/?p=19540\">\u2461 Pilot screw dramatically improves Zephyr 550 starting performance &#8211; Pilot screw adjustment <\/a><\/strong><\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center\">(\u00b4\u30fc\uff40) Carbureted bikes are fun when you change the spark plug. <\/h2>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\t\t<div class=\"pochipp-box\"\n\t\t\tdata-id=\"247\"\n\t\t\tdata-img=\"l\"\n\t\t\tdata-lyt-pc=\"imgbig\"\n\t\t\tdata-lyt-mb=\"vrtcl\"\n\t\t\tdata-btn-style=\"dflt\"\n\t\t\tdata-btn-radius=\"on\"\n\t\t\tdata-sale-effect=\"flash\"\n\t\t\t data-cvkey=\"7f020360\"\t\t>\n\t\t\t\t\t\t\t<div class=\"pochipp-box__image\">\n\t\t\t\t\t<a href=\"https:\/\/af.moshimo.com\/af\/c\/click?a_id=3739420&#038;p_id=170&#038;pc_id=185&#038;pl_id=4062&#038;url=https%3A%2F%2Fwww.amazon.co.jp%2Fdp%2FB005L0Y3DO\" rel=\"nofollow noopener\" target=\"_blank\">\n\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/m.media-amazon.com\/images\/I\/41ZBUJpm2KL._SL500_.jpg\" alt=\"\" width=\"120\" height=\"120\" \/>\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<div class=\"pochipp-box__body\">\n\t\t\t\t<div class=\"pochipp-box__title\">\n\t\t\t\t\t<a href=\"https:\/\/af.moshimo.com\/af\/c\/click?a_id=3739420&#038;p_id=170&#038;pc_id=185&#038;pl_id=4062&#038;url=https%3A%2F%2Fwww.amazon.co.jp%2Fdp%2FB005L0Y3DO\" rel=\"nofollow noopener\" target=\"_blank\">\n\t\t\t\t\t\tNGK Spark Plug JR8B\u2014DR8EA Compatible\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\n\t\t\t\t\t\t\t\t\t<div class=\"pochipp-box__info\">\u65e5\u672c\u7279\u6b8a\u9676\u696d(Ngk)<\/div>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<div class=\"pochipp-box__price\">\n\t\t\t\t\t\t\u00a5898\t\t\t\t\t\t<span>\uff082026\/09\/21 15:35\u6642\u70b9 | Amazon\u8abf\u3079\uff09<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<div class=\"pochipp-box__review\">\n\t\t\t\t\t\t<a href=\"https:\/\/af.moshimo.com\/af\/c\/click?a_id=3739420&amp;p_id=170&amp;pc_id=185&amp;pl_id=4062&amp;url=https%3A%2F%2Fwww.amazon.co.jp%2Fproduct-reviews%2FB005L0Y3DO\" rel=\"nofollow noopener\" target=\"_blank\">\n\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/www.decoboco.info\/en\/wp-content\/plugins\/pochipp\/assets\/img\/review.svg\" alt=\"\" width=\"16\" height=\"16\" \/>\n\t\t\t\t\t\t\t<span>\u53e3\u30b3\u30df\u3092\u898b\u308b<\/span>\n\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"pochipp-box__btns\"\n\t\tdata-maxclmn-pc=\"fit\"\n\t\tdata-maxclmn-mb=\"1\"\n\t>\n\t\t\t\t\t<div class=\"pochipp-box__btnwrap -amazon\">\n\t\t\t\t\t\t\t\t<a href=\"https:\/\/af.moshimo.com\/af\/c\/click?a_id=3739420&#038;p_id=170&#038;pc_id=185&#038;pl_id=4062&#038;url=https%3A%2F%2Fwww.amazon.co.jp%2Fdp%2FB005L0Y3DO\" class=\"pochipp-box__btn\" rel=\"nofollow noopener\" target=\"_blank\">\n\t\t\t\t\t<span>\n\t\t\t\t\t\tAmazon\t\t\t\t\t<\/span>\n\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/i.moshimo.com\/af\/i\/impression?a_id=3739420&#038;p_id=170&#038;pc_id=185&#038;pl_id=4062\" width=\"1\" height=\"1\" style=\"border:none;\">\t\t\t\t<\/a>\n\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"pochipp-box__btnwrap -rakuten\">\n\t\t\t\t\t\t\t\t<a href=\"https:\/\/af.moshimo.com\/af\/c\/click?a_id=3739418&#038;p_id=54&#038;pc_id=54&#038;pl_id=616&#038;url=https%3A%2F%2Fitem.rakuten.co.jp%2Fwebike-rb%2F1957675%2F\" class=\"pochipp-box__btn\" rel=\"nofollow noopener\" target=\"_blank\">\n\t\t\t\t\t<span>\n\t\t\t\t\t\tRakuten\t\t\t\t\t<\/span>\n\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/i.moshimo.com\/af\/i\/impression?a_id=3739418&#038;p_id=54&#038;pc_id=54&#038;pl_id=616\" width=\"1\" height=\"1\" style=\"border:none;\">\t\t\t\t<\/a>\n\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"pochipp-box__btnwrap -yahoo\">\n\t\t\t\t\t\t\t\t<a href=\"https:\/\/af.moshimo.com\/af\/c\/click?a_id=3739424&#038;p_id=1225&#038;pc_id=1925&#038;pl_id=19142&#038;url=https%3A%2F%2Fstore.shopping.yahoo.co.jp%2Ft-joy%2Ftn-ngk-jr8b-7237.html\" class=\"pochipp-box__btn\" rel=\"nofollow noopener\" target=\"_blank\">\n\t\t\t\t\t<span>\n\t\t\t\t\t\tYahoo!\t\t\t\t\t<\/span>\n\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/i.moshimo.com\/af\/i\/impression?a_id=3739424&#038;p_id=1225&#038;pc_id=1925&#038;pl_id=19142\" width=\"1\" height=\"1\" style=\"border:none;\">\t\t\t\t<\/a>\n\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"pochipp-box__logo\">\n\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/www.decoboco.info\/en\/wp-content\/plugins\/pochipp\/assets\/img\/pochipp-logo-t1.png\" alt=\"\" width=\"32\" height=\"32\">\n\t\t\t\t\t<span>\u30dd\u30c1\u30c3\u30d7<\/span>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t","protected":false},"excerpt":{"rendered":"<p>Well then, this is a ZEPHYR550. Quite a bit of time has passed, and I&#8217;d like to gradually freshen it up. Whether the starting is good or bad really changes your mood completely (*\u00b4\u03c9\uff40*)<\/p>\n","protected":false},"author":2,"featured_media":19541,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"pochipp_cv_data":"{\"7f020360\":{\"pv\":376,\"imp\":289,\"clickedOther\":3,\"clickedAmazon\":2}}","swell_btn_cv_data":"","footnotes":""},"categories":[41],"tags":[607,601,613],"class_list":["post-19545","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-zephyr550zr550","tag-zephyr-400","tag-zephyr-550","tag-zr550"],"_links":{"self":[{"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/posts\/19545","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/comments?post=19545"}],"version-history":[{"count":0,"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/posts\/19545\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/media\/19541"}],"wp:attachment":[{"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/media?parent=19545"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/categories?post=19545"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.decoboco.info\/en\/wp-json\/wp\/v2\/tags?post=19545"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}